Navigation : PostgreSQL 10.18 Documentation > Chapter 63. SP-GiST Indexes Chapter 63. SP-GiST Indexes Chapter 63. SP-GiST Indexes Prev Up Part VII. Internals Home Next Table of Contents 63.1. Introduction 63.2. Built-in Operator Classes 63.3. Extensibility 63.4. Implementation 63.4.1. SP-GiST Limits 63.4.2. SP-GiST Without Node Labels 63.4.3. " All-the-same " Inner Tuples 63.5. Examples